Driveway Patrol Security Alarm System is an infrared sensor that alerts you when someone crosses its path. When placed across the driveway or on your porch, a pleasant chime will sound alerting you that someone has come onto your property. Driveway Patrols amazing wireless technology provides easy mobility. Simply place the sensor by the front door, garage, mailbox, or anywhere else near your home and the unit will send a signal to its receiver (up to 400 feet away)! With Driveway (more…)